physics

a ball is thrown at an initial angle of 37 and initail velocity of 23.0 m/s reaches a maximum height h, as shwon in the Figure. With what initial speed must a ball be thrown straight up to reach the same maximum height h?

  1. 👍 0
  2. 👎 0
  3. 👁 2,222
  1. Vi^2=2gh

    Vi= sqrt (2gh)

    1. 👍 0
    2. 👎 1
    👨‍🏫
    bobpursley
  2. sin(37) * 23 = 13.8

    1. 👍 2
    2. 👎 2

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